CaratHunter
Plans
Radiant|Natural|IGI

0.51ct E SI2 Radiant Natural Diamond

VG • E/SI2 • IGI 692555285

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI 692555285

Diamond specifications and retailer prices

From £252 GBP
As of November 6, 2026
Save £1,070 GBP (81%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,322 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 692555285. Listed at 7 retailers as of November 5, 2026, with prices from £252 to £1,322, a £1,070 spread on the same certified stone. NZ Jewellers lists it at £1,322. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
E
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle46.1°
Pavilion angle28.9°
OriginNatural
Grading LabIGI
CertificateIGI 692555285
Dimensions5.36 × 3.93 × 2.57 mm
L/W Ratio1.36
Culet sizePointed
Top View
5.36 mm3.93 mm0.51 ctE / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateIGI 692555285
Side View
Table 65.0%Crown 46.1°Girdle: Slightly ThickPavilion 28.9°Culet: NoneDepth 65.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £1,322 GBP|Low: £252 GBP|High: £1,369 GBP|Avg: £592 GBP|-3.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 3£252 GBP
Retailer 8£394 GBP
Retailer 5£432 GBP
Retailer 7£442 GBP
Retailer 6£484 GBP
Retailer 4£518 GBP
Retailer 2£792 GBP
NZ Jewellers£1,322 GBP

44 data points across 8 retailers

7 retailers£252 GBP to £1,322 GBP

A
Cheapest Retailer
-
£252 GBP
A
Retailer 2
-
£432 GBP
View
B+
Retailer 3
-
£442 GBP
View
B+
Retailer 4
-
£484 GBP
View
B+
Retailer 5
-
£518 GBP
View
B
Retailer 6
-
£792 GBP
View
Most Expensive
C
NZ Jewellers
64a8f44c-19b9-448a-827f-1c2472b85185 · Nov 5
£1,322 GBP
$1,769 USD
View
6 more retailers have this diamond
Prices start from £252 GBPSave up to £1,070 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.51ct Radiant
£252 GBP